Quality of Service over Heterogeneous Network with MPLS Backbone

2012 ◽  
Vol 433-440 ◽  
pp. 3362-3365 ◽  
Author(s):  
Omer Mahmoud ◽  
Farhat Anwar ◽  
Ali Sellami ◽  
Aisha H. Abdulla
Keyword(s):  
Quality Of Service ◽  
Heterogeneous Network ◽  
Control Mechanism ◽  
High Sensitivity ◽  
Multiprotocol Label Switching ◽  
End User ◽  
Ip Qos ◽  
New Applications ◽  
Delay Variation

Internet growth in recent years has encouraged many new applications to be provided for the end user. However, providing and maintaining high quality of service for these new applications is a challenging matter that is getting the attention of many many researchers nowadays. The QoS challenge is emanating from the diversity of these applications, in term of bandwidth requirements and high sensitivity to delay and delay variation. Three main architectures were proposed by IETF in an effort to make the IP QoS a reality. They are integrated services (Intserv), differentiated services (DiffServ) and multiprotocol label switching (MPLS). Sometimes perceived as competitor, these architectures are in fact complementary developments that approach the QoS challenge from different network perspectives. Thus these approaches can work together in a manner that provides a global QoS within Heterogeneous network. This paper aims to propose and discusses an improved admission control mechanism in order to achieve a global QoS in the HN Network. The proposed mechanism uses MPLS-TE tunnels at the core of Heterogeneous networks to maintain QoS for inter-domain flows and applications.

scholarly journals Evaluasi Kualitas Layanan Website Alumni Menggunakan Metode Webqual 4.0

2019 ◽  
Vol 5 (2) ◽  
pp. 105
Author(s):  
Anisa Yulandari ◽  
Wing Wahyu Winarno ◽  
Asro Nasiri
Keyword(s):  
Quality Of Service ◽  
User Satisfaction ◽  
Information Quality ◽  
Three Dimensions ◽  
Job Seekers ◽  
End User ◽  
Interaction Quality ◽  
Service Interaction

Website Portal Alumni Amikom Yogyakarta yang dapat diakses pada alamat domain alumni.amikom.ac.id merupakan bagian dari Universitas Amikom Yogyakarta yang berfungsi sebagai sarana berbagi informasi sekaligus bertindak sebagai penghubung antara perusahaan pencari tenaga kerja dan para pencari kerja khususnya alumni Universitas Amikom Yogyakarta. Selama ini website alumni sudah berjalan belum dilakukan evaluasi terhadap kualitas layanan website yang didasarkan pada persepsi pengguna akhir sebagai umpan balik kepada pengelola website sehingga pengelola dapat mengetahui sejauh mana kepuasan pengguna dan kualitas layanan yang sudah diberikan. Tujuan dari penelitian ini yaitu untuk mengetahui kualitas layanan website alumni menggunakan tiga dimensi yang ada pada metode Webqual 4.0. Tiga dimensi itu sendiri terdiri dari Kegunaan, Kualitas Informasi, dan Kualitas Interaksi Layanan. Pendistribusian kuisioner dilakukan terhadap 200 sampel responden. Kesimpulan dari penelitian ini adalah adanya pengaruh ketiga dimensi Webqual 4.0 terhadap kepuasan pengguna. Dimensi yang paling berpengaruh yaitu Kualitas Informasi dan Kualitas Interaksi Layanan. Hal ini berarti peningkatan dapat dilakukan pada indicator yang memiliki nilai rata-rata terendah. Peningkatan pada dimensi Kualitas Informasi dapat dilakukan perbaruan secara berkala sehingga informasi yang disajikan menjadi lebih relevan. Sedangkan untuk dimensi Kualitas Interaksi Layanan dapat dilakukan dengan meningkatkan pelayanan terhadap keluhan seputar website alumni.Kata Kunci — Kualitas Layanan, Website Alumni, Webqual 4.0The Alumni Amikom Yogyakarta Website which can be accessed at the domain address alumni.amikom.ac.id is part of the Amikom University of Yogyakarta which serves as a means of sharing information while acting as a liaison between the company and job seekers, especially alumni of Yogyakarta Amikom University. So far, the alumni website has been running, yet an evaluation of the quality of website services has been carried out based on the perception of the end user as feedback to the website manager so that the manager can find out how far the user satisfaction is and the quality of the service provided. The purpose of this study is to determine the quality of the alumni website service using three dimensions that exist in the method of Webqual 4.0, there are Usability, Information Quality, and Service Interaction Quality. The conclusion of this study is the influence of the three dimensions of Webqual 4.0 on user satisfaction. The most influential dimensions are Information Quality and Service Interaction Quality. This means that an increase can be made on an indicator that has the lowest average valueKeywords— Quality of Service, Alumni Website, Webqual 4.0

Software Applications as an Ensuring Means the Quality of Service the Wi-Fi networks

2021 ◽  
pp. 106-115
Author(s):  
С.В. Шевелев ◽  
А.Б. Семенов
Keyword(s):  
Wireless Networks ◽  
Quality Of Service ◽  
Access Control ◽  
Real Time ◽  
Control Mechanism ◽  
Fine Tuning ◽  
Control Mechanisms ◽  
Software Applications ◽  
Access Control Mechanism

Рассмотрены принципы обеспечения заданного уровня качества обслуживания QoS в беспроводных сетях, позволяющие достигнуть устойчивого функционирования программных приложений реального времени за счет тонкой настройки приоритезации генерируемого ими трафика. Основное внимание уделяется механизму управления доступом на основе конкуренции и контролируемого доступа, а также их расширениям. Затронуты вопросы инкапсуляции базовых механизмов управления в решения более высоких уровней EDCA и TXOP. Приведены расчетные значения соответствующих параметров. The principles of ensuring a given level of quality of QoS service in wireless networks are considered, which allow achieving the stable functioning of real-time software applications by fine-tuning the prioritization of the traffic generated by them. The main focus is on the competition-based access control mechanism and controlled access, as well as their extensions. The issues of encapsulation of basic control mechanisms in solutions of higher levels of EDCA and TXOP are touched upon. The calculated values of the corresponding parameters are given.

Pricing Quality of Service in Diffserv IP Networks

2010 ◽  
pp. 1245-1251 ◽  
Author(s):  
Vladanka S. Acimovic-Raspopovic ◽  
Mirjana D. Stojanovic
Keyword(s):  
Quality Of Service ◽  
Network Resources ◽  
Telecommunication Services ◽  
Ip Qos ◽  
Qos Differentiation ◽  
Commercial Networks ◽  
Standard Application ◽  
Voice Data ◽  
Pricing Schemes

In order to reduce costs and make it easier to integrate disparate systems, networked and virtual organizations (NVOs) should adopt open technology standards throughout the entire organization—standard computing architectures, standard networks, and standard application interfaces. The Internet protocol (IP) technology has been foreseen as a basic networking infrastructure that supports communication requirements of NVOs. With the growing demand for the integration of heterogeneous telecommunication services (e.g., voice, data, video and multimedia), there is a strong need for deploying quality of service (QoS) in IP-based networks. Under such circumstances, the flat pricing models that have been satisfying in traditional best-effort Internet so far do not encourage users to make reasonable use of resources. QoS differentiation introduces a clear need for incentives to be offered to users to encourage them to choose the service that is most appropriate for their needs. In commercial networks, this can be most effectively achieved through pricing. Falkner, Devetsikiotis, and Lambadaris (2000) and Da Silva (2000) supplied comprehensive reviews and evaluation of pricing schemes developed during the nineties and mainly related with per-flow IP QoS approaches, such as the integrated services (IntServ) specified by Braden, Clark, and Shenker (1994). Proliferation of the differentiated services framework, since the late 90s posed a number of new issues and resulted in novel proposals for pricing IP QoS and network resources.

A Generic Adaptation Framework for Mobile Communication

2011 ◽  
Vol 2 (1) ◽  
pp. 46-57
Author(s):  
Hong Sun ◽  
Ning Gui ◽  
Chris Blondia
Keyword(s):  
Quality Of Service ◽  
Mobile Devices ◽  
Mobile Communication ◽  
Quality Of Experience ◽  
Adaptation Strategies ◽  
Easy Access ◽  
Mobile Terminals ◽  
System Resources ◽  
New Applications

Today, technologies are providing mobile terminals with much more powerful computational abilities. Such improvement has made it possible to run many complex applications on mobile devices. However, many of these new applications are also resource demanding. Lacking sufficient resources would cause performance failures and impact negatively on the users’ quality of experience. In order to improve this, it is important to provide the users with an easy access to specifying their requirements. It is also crucial to monitor the system resources and make corresponding adaptation immediately according to the user’s specifications. In this paper, the authors propose adaptation strategies that flexibly combine the process of monitoring and adaptation, which provides an easy way to specify user’s requirements. By tuning the quality of service, the applications’ demand on system resources is reduced, thus decreasing the chances of performance failures and improving the users’ quality of experience.

Evaluating QoS in a Multi-Access Wireless Network

2010 ◽  
pp. 1-30
Author(s):  
Ronan Skehill ◽  
William Kent ◽  
Dorel Picovici ◽  
Michael Barry ◽  
Sean McGrath
Keyword(s):  
Quality Of Service ◽  
Admission Control ◽  
Control Strategies ◽  
End User ◽  
Ieee 802.11B ◽  
Test Platform ◽  
Tightly Coupled ◽  
Multi Access ◽  
The Impact

This chapter introduces quality of service in multi-access wireless networks. Specifically it demonstrates how QoS is implemented in IEEE 802.11 and UMTS. The chapter explains how these complementary technologies, when coupled together, provide a network that is greater than its individual parts. Combining these networks brings new network management challenges. To this end, the impact of joint admission control strategies on quality of service is evaluated. The evaluation is performed on an advanced test platform that replicates an integrated Release 4 UMTS network and standard IEEE 802.11b network. The results show that when UMTS and WLAN are tightly coupled, the end user enjoys a higher level of quality of service.

Multicast of Multimedia Data

2008 ◽  
pp. 1781-1788
Author(s):  
Christos Bouras ◽  
Apostolos Gkamas ◽  
Dimitris Primpas ◽  
Kostas Stamos
Keyword(s):  
Quality Of Service ◽  
Real Time ◽  
Heterogeneous Network ◽  
Multimedia Data ◽  
The Other ◽  
The Internet ◽  
Service Guarantees ◽  
Tcp Friendly ◽  
Real Time Applications

The heterogeneous network environment that Internet provides to real time applications as well as the lack of sufficient QoS (Quality of Service) guarantees, many times forces applications to embody adaptation schemes in order to work efficiently. In addition, any application that transmits data over the Internet should have a friendly behaviour towards the other flows that coexist in today’s Internet and especially towards the TCP flows that comprise the majority of flows. We define as TCP friendly flow, a flow that consumes no more bandwidth than a TCP connection, which is traversing the same path with that flow (Pandhye 1999).

Enhancing Quality of Service in Cloud Gaming System

2017 ◽  
pp. 228-260 ◽  
Author(s):  
Balamurugan Balusamy ◽  
P. Venkata Krishna ◽  
Aishwarya T. ◽  
Thusitha M. ◽  
Tamizh Arasi G. S. ◽  
...  
Keyword(s):  
Quality Of Service ◽  
Geographical Location ◽  
Cloud Platform ◽  
Quality Factors ◽  
End User ◽  
User Input ◽  
Runtime Environment ◽  
User Request ◽  
Data Capturing

In multi-player cloud gaming two or more people from different locations may actively participate in gaming as like they were in a similar geographical location. In such cases handling massive user inputs, performance rendering, bandwidth fluctuations, load balancing, data capturing, data transmission in real time still remains a cumbersome in cloud gaming. In this chapter, we propose a framework that overcomes the major issues associated with quality of service in cloud gaming. The cloud platform consists of two environments namely workbench and runtime environment, where the work bench environment comprises of tools like end user tools, data parsing tools and data integrity tools through which the user input is analyzed and sent to the run time environment for further processing. Each tool present at the cloud platform helps in achieving the quality factors through its functionalities. The user request is processed and the results will be sent to the clients through the runtime environment.

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